Protein-protein complex structure predictions by multimeric threading and template recombination.
Protein-protein complex structure predictions by multimeric threading and template recombination.
复制标题
蛋白质 - 蛋白质复合结构通过多聚螺纹和模板重组进行预测。
DOI:
10.1016/j.str.2011.04.006
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发表时间:
2011-07-13
期刊:
影响因子:
5.7
通讯作者:
Zhang, Yang
中科院分区:
文献类型:
--
作者:
Mukherjee, Srayanta;Zhang, Yang
The number of protein-protein complex structures is nearly 6-times smaller than that of tertiary structures in PDB which limits the power of homology-based approaches to complex structure modeling. We present a new threading-recombination approach, COTH, to boost the protein complex structure library by combining tertiary structure templates with complex alignments. The query sequences are first aligned to complex templates using a modified dynamic programming algorithm, guided by ab initio binding-site predictions. The monomer alignments are then shifted to the multimeric template framework by structural alignments. COTH was tested on 500 non-homologous dimeric proteins, which can successfully detect correct templates for half of the cases after homologous templates are excluded, which significantly outperforms conventional homology modeling algorithms. It also shows a higher accuracy in interface modeling than rigid-body docking of unbound structures from ZDOCK although with lower coverage. These data demonstrate new avenues to model complex structures from non-homologous templates.
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Bateman, Alex
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Vajda, Sandor
影响因子:
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Janin, Joel
通讯作者:
Janin, Joel
影响因子:
14.9
作者:
Comeau, SR;Gatchell, DW;Camacho, CJ
通讯作者:
Camacho, CJ